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Finding the Fourth Proportional to 323,205.75, 445,902.87 and 187,190.16

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Solution

The fourth proportional to 323,205.75, 445,902.87 and 187,190.16 is: 258,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,205.75 : 445,902.87 = 187,190.16 : x
  2. Step 2: Convert to fraction form
    323,205.75/445,902.87 = 187,190.16/x
  3. Step 3: Cross multiply
    323,205.75x = 445,902.87 × 187,190.16
  4. Step 4: Simplify right side
    323,205.75x = 83,468,629,579.76
  5. Step 5: Solve for x
    x = 83,468,629,579.76/323,205.75
  6. Step 6: Final answer
    x = 258,252.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.